day11: cleanup

src/day11.rs

@@ -36,7 +36,6 @@ fn mark_paths<'a>(
     if let Some(nexts) = edges.get(cur) {
         for n in nexts {
             if !reachable.contains(&n.as_str()) {
-                // reachable.insert(n);
                 reachable = mark_paths(n, edges, reachable);
             }
         }